As the transport artery for the reactor coolant, high-energy piping systems are the links that maintain the normal operation of each system and play a crucial role in ensuring the normal operation and safety of the reactor in nuclear power plants. During the long-term operation of the reactor, stress concentration may be induced at the weak links in the pipeline systems, such as the elbow and the tee pipe structures, under the loads of high temperature, high pressure, flow-induced vibration and so on, and finally resulting in crack defects. Due to the continuous fatigue load during the lifetime, the defects in the inner surface of the pipes may propagate rapidly and even penetrate through the wall thickness, leading to the leakage of coolant and seriously affecting the safe operation of the reactor. In order to ensure the normal function of the pipeline system and meet the service requirements, this paper studies the fatigue crack propagation problems in elbows and tee pipe in the reactor pipe systems to ensure the safe operation of the pipeline. According to the RCC-MR A16 code, the fatigue crack propagation calculation program is compiled for the elbow and tee pipe made of austenitic steel to study the fatigue crack growth process and the influencing factors of crack propagation.
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ASME 2018 Pressure Vessels and Piping Conference
July 15–20, 2018
Prague, Czech Republic
Conference Sponsors:
- Pressure Vessels and Piping Division
ISBN:
978-0-7918-5168-5
PROCEEDINGS PAPER
Numerical Calculation of Fatigue Crack Growth for the Structures of Elbow and Tee Pipe Based on RCC-MR A16 Code
Peng Tang,
Peng Tang
Nuclear Power Institute of China, Chengdu, China
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Jiacheng Luo,
Jiacheng Luo
Nuclear Power Institute of China, Chengdu, China
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Pengzhou Li,
Pengzhou Li
Nuclear Power Institute of China, Chengdu, China
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Lei Sun,
Lei Sun
Nuclear Power Institute of China, Chengdu, China
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Juan Luo
Juan Luo
Nuclear Power Institute of China, Chengdu, China
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Peng Tang
Nuclear Power Institute of China, Chengdu, China
Jiacheng Luo
Nuclear Power Institute of China, Chengdu, China
Pengzhou Li
Nuclear Power Institute of China, Chengdu, China
Lei Sun
Nuclear Power Institute of China, Chengdu, China
Juan Luo
Nuclear Power Institute of China, Chengdu, China
Paper No:
PVP2018-85061, V06BT06A056; 5 pages
Published Online:
October 26, 2018
Citation
Tang, P, Luo, J, Li, P, Sun, L, & Luo, J. "Numerical Calculation of Fatigue Crack Growth for the Structures of Elbow and Tee Pipe Based on RCC-MR A16 Code." Proceedings of the ASME 2018 Pressure Vessels and Piping Conference. Volume 6B: Materials and Fabrication. Prague, Czech Republic. July 15–20, 2018. V06BT06A056. ASME. https://doi.org/10.1115/PVP2018-85061
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